Manufacture of pieced tinware.



N0. 647,809. Patented Apr. l7, I900. E. E. DAVENPORT.

MANUFACTURE OF PIECED TINWABE.

} (Application filed Feb. 7, 1900.) (No Model.)

WITNESSES INVENTOR 1 Ilium/Z. Dar/0627 0071 I J- mm bzdtlorney. I

UNITED STATES PATENT ()FFICE.

ELMER E. DAVENPORT, or CHICAGO, ittiivois MANUFACTURE OF PIECED TINWARE.

SPECIFICATION forming part of Letters Patent N 0. 647,809, dated April17, 1900.

Application filed February 7, 1900. Serial No;'4,398. (No model.)

T at whom it may concern:

Be it known that I, ELMER E. DAVENPORT,

a citizen of the United States, residing at Chi soldered tinned metal bymy method out of black sheet metal, as sheet-iron or sheet-steel, bycutting, and, if necessary, by partially splitting the blank or patternof said article of the required shape, bending said blank in anydirection to obtain therefrom approximately the final form of thecompleted article, but with its edges or parts unconnected, and thencoating with tin the faces and all the raw edges of the bent blankordisjointed article, and, lastly, bringing the joints or parts of thearticle in the positions they are to oc cupy finally and soldering themas ordinarily done in the manufacture of pieced tinware made of theterne or tin plates of commerce.

To illustrate the application of my invention to one article ofmanufacture, the blank of a sheet-metal scoop is shown in theaccompanying drawings, in which- Figure 1 is a plane top 'view of theblack sheet-metal blank used to produce the scoop, the dotted linesshowing where bends are to be made in the metal. Fig. 2 is aperspectiveView of the form given to the black sheetmetal blank by bending itscomponent parts on the dotted lines of Fig. 1 before itis dipped inmelted tin and after it is removed therefrom with its faces and edgescoated with said tin.

The scoop shown is intended to have a reinforced back and bottom of twothicknesses of the metal, the bottom consisting of the two triangularparts 1 and 2. The part 1 in Fig. 2 constitutes the outside bottom andthe part 2 the inside bottom, The two thicknesses at The sides 5 and 6are bent from the triangular parts 1 and 2 of the bottom. On the rearends of said triangular parts 1 and 2 are tri angular lugs 9 to beturned up against the rear of the back 4. The parts 1 and 2 beingsubstantially parallel to each other while the bent blank is beingdipped in the melted tin, the whole surfaces of each part are coated onboth sides without interfering with each other; but the bent blank maybe lightly struck against the sides of the tin-holdingtank or some partthereof to shake off any surplus tin, as this is done while tinning abunch of small objects, as nails or tacks, and after the bent blank hasbecome cold its bends are compressed slightly more by the operatorshands or by simple clamps to bring the joints in the positions they areto occupy finally, and said joints are soldered by well-known means. Bythis method of making pieced tinware there is no straining or rupture ofthe tin coating of the black metal at the bonds of the blank and verylittle handling of the blank after it has been coated with tin.Therefore the finished article thereby escapes many scratches formed ontinware that has been out and bent from the tin plates of comtinct fromthat necessary to make pieced tinware, which requires soldering in itsconstructio'n, the black metal of which cannot ordinarily have itsjoints or parts soldered to complete the article.

Having now fully described my invention, I claim-- 1. The method ofmanufacturing pieced I .tinware which consists in cuttingfth e blank Iparts of the article of black sheet iron or steel of the required shape,bending said blank parts in the approximately final forms neces sary toconstruct the article, andtinnin'gthebent or flat blank parts of thedisjointed article, substantially as describedl j v 2. The method ofmanufacturing pieced ti'nware which consists in cutting out of blacksheet iron or steel the blank partsof'the article, bending said blankparts in not their final forms, but in forms approximately like thefinal formsto-be given to the article, tinning the bent or flatblank'partsof the disjointed article, and'closing and soldering thejoints or parts, whereby the article is completed substantially asdescribed.

In testimony whereof I aflix; my signature in presence of two-witnesses.

ELMER E. DAVENPORT.

Witnesses: i

J. W. GHISELIN, R. M. BARBER.

